Fast, reliable, and affordable! Arrived in under an hour, diagnosed the problem on the spot, sourced the parts themselves, and had me running again quickly.
When commercial HVAC fails, every hour costs you money β lost customers, spoiled product, unhappy employees. Big Mike’s is the commercial HVAC company Detroit Metro businesses call when they need it fixed right and fixed fast. From single-location storefronts to multi-site retail chains. Need refrigeration too? See our Commercial Refrigeration page.
Or call us directly:
(313) 398-0504
BBB
AccreditedBusiness
Property managers and corporate facility managers can verify our credentials with the Better Business Bureau. BBB Accredited means we’re committed to honest pricing, transparent contracts, and resolving issues the right way β exactly what commercial accounts demand.
View Our BBB Profile →Different commercial spaces need different HVAC approaches. A convenience store has refrigeration tied into HVAC. A restaurant has heavy makeup air and exhaust requirements. An office needs zone control. We work across them all and bring 20+ years of commercial experience to every job.
Big Mike’s handles every aspect of commercial HVAC β from a single rooftop unit not cooling to full system replacements across multiple locations. Whatever’s broken, we fix it. Whatever you need installed, we design and install it right.
Commercial rooftop unit specialists. 3-25+ ton systems. Carrier, Trane, Lennox, AAON, York. Compressor, fan, economizer, electrical, refrigerant.
Fast diagnosis and repair on commercial AC units. We work around your business hours and minimize customer-facing disruption.
Commercial heating repair and installation. Gas, electric, hot water, and steam boiler systems. Up to 1,500 MBH and beyond.
New commercial HVAC installation. Manual J/N load calculations, energy-efficient equipment selection, full project management.
Quarterly or biannual maintenance plans. Filters, belts, coils, refrigerant, electrical. Prevents 80% of breakdowns. Priority service included.
Centralized HVAC service for retail chains and franchise operators. Single point of contact, consistent service, simplified billing.
Commercial ductwork design, installation, and repair. Kitchen exhaust, makeup air, balanced ventilation systems.
Walk-in coolers, freezers, ice machines, display cases. EPA 608 certified. See refrigeration page β
Real reviews from Detroit Metro customers. Same fast, honest service for residential and commercial accounts.
Fast, reliable, and affordable! Arrived in under an hour, diagnosed the problem on the spot, sourced the parts themselves, and had me running again quickly.
They are hard working, polite and get the job done as fast as possible to keep you warm and cool. And their pricing is best over all.
Great price. I called Big Mikes on a Friday night, he came out the same night and had my furnace working after hours! Highly recommend.
Quick work and took care of problem cheaper then the rest.
Real answers for facility managers and business owners. Don’t see what you need? Call (313) 398-0504 and ask directly.
We service a wide range of commercial spaces across Wayne, Macomb, and Oakland County:
β’ Convenience stores β 7-Eleven, Speedway, Sunoco, independents
β’ Restaurants and bars β kitchen exhaust, dining HVAC, makeup air
β’ Retail stores β Family Dollar and similar independent retailers
β’ Gas stations β combined HVAC + refrigeration
β’ Medical and dental offices β precise temp control, code compliance
β’ Professional offices β zone control, energy efficiency
β’ Warehouses and small industrial β large-tonnage RTUs, makeup air
β’ Apartment buildings and multi-family β common area HVAC, boilers
β’ Schools and daycare facilities
Both single-location and multi-location accounts welcome.
We prioritize commercial accounts because every hour your HVAC is down costs you money:
β’ Standard response: Same-day during business hours (MonβSat 9 AM β 5 PM)
β’ Maintenance contract holders: Expedited response, after-hours dispatch available
β’ Most Wayne County commercial calls are on-site within 2β4 hours of initial call
β’ Refrigeration emergencies (walk-in cooler down) get same-priority response β we know spoilage starts in hours, not days
Multi-location chain accounts: call our standard line and tell us the location β we dispatch immediately.
Yes β RTU service is a core commercial offering. We service rooftop units from 3 ton to 25+ ton from all major commercial manufacturers:
β’ Brands: Carrier, Trane, Lennox, Bryant, York, AAON, Goodman Commercial, Rheem
β’ Common RTU work: Compressor service, fan motor replacement, economizer repair, refrigerant work, electrical issues, ductwork connections, full RTU replacement
β’ Safety equipment: Proper fall protection and roof access equipment for all sizes
β’ Replacement work: Full RTU swap-outs including curb modifications, crane scheduling, electrical disconnects
If your RTU is acting up, the diagnostic call is the same $79 as residential β just send us the model and serial number when you call so we can have likely parts on the truck.
Yes. Our commercial maintenance contracts are built around your equipment count and operations:
What’s included:
β’ Quarterly or biannual scheduled visits (depending on equipment)
β’ Filter changes (we supply or use yours)
β’ Belt inspections and adjustments
β’ Coil cleaning (condenser and evaporator)
β’ Electrical inspection (contactors, capacitors, wiring)
β’ Refrigerant pressure verification
β’ Full system performance report after each visit
Maintenance customer benefits:
β’ Priority response on emergency calls
β’ Discounted repair labor rates
β’ After-hours emergency dispatch available
β’ No surprise breakdowns = less revenue loss
Custom contract terms based on equipment count and locations. Most contracts run $400-$2,000 per year depending on size.
Yes β we currently service multi-location accounts for convenience store and retail chains across Detroit Metro. Multi-location account features:
β’ Single point of contact for dispatching across all locations
β’ Centralized billing options (monthly invoicing, NET 30, PO-based)
β’ Consistent service standards across all sites
β’ Digital service records per location for audit and reporting
β’ Standardized maintenance schedules across the portfolio
β’ Volume pricing on parts and labor for larger accounts
We’re actively welcoming new chain and franchise accounts. Send us your locations list and we’ll quote standardized service.
Commercial HVAC pricing depends on equipment size, complexity, and parts needed:
β’ Service call/diagnostic: $79 (credited toward repair if approved)
β’ Standard commercial repairs: $200β$800 (capacitors, contactors, motors, controls)
β’ Major commercial repairs: $500β$3,000+ (compressors, coils, RTU service)
β’ Full RTU replacement: $8,000β$25,000+ depending on tonnage
β’ Maintenance contracts: $400β$2,000+ annually depending on equipment count and visit frequency
All work includes written estimates before any service. Maintenance contract customers get discounted labor rates on emergency repairs.
Yes β we routinely provide certificates of insurance (COI) for property management companies, corporate facility managers, and landlords. Standard COI includes:
β’ General liability
β’ Workers compensation
β’ Auto liability
We can also add additional insured parties and waiver of subrogation when required. Just let us know what your property requires and we’ll have the COI emailed before our first visit. No charge for COI requests.
Yes β we work around your operations to minimize disruption:
β’ Retail and convenience stores: Routine maintenance scheduled during off-peak hours (early morning before opening or after close)
β’ Restaurants and bars: Work between meal services (2-4 PM is the sweet spot for most kitchens)
β’ Offices: Evening and weekend installation work available
β’ 24/7 operations: Coordinate with your shift schedule to find low-traffic windows
Emergency repairs happen whenever needed β we don’t make you wait until convenient for us. After-hours dispatch is available for active maintenance contract holders.
All major commercial brands:
β’ Carrier (authorized dealer β direct parts access)
β’ Lennox (authorized dealer)
β’ Bryant (authorized dealer)
β’ Trane, York, AAON, Daikin
β’ Mitsubishi, LG (VRF and mini-split systems)
β’ Heatcraft (refrigeration-integrated units)
β’ Goodman Commercial, Rheem Commercial
Even if your commercial unit is 20+ years old or a less common brand, we can usually source parts. Send us the model and serial when you call.
Yes β commercial refrigeration is a major service line and a natural pair with HVAC for our convenience store and restaurant accounts:
β’ Walk-in coolers and walk-in freezers
β’ Reach-in display cases and refrigerators
β’ Ice machines (Manitowoc, Hoshizaki, Scotsman, Ice-O-Matic)
β’ Remote condensing systems
β’ Bar coolers, beverage equipment, kegerators
EPA 608 certified for all refrigerant work. We service the same convenience stores, restaurants, and grocery stores for both HVAC and refrigeration β one call covers both. See our Commercial Refrigeration page for full details.
Two different services, both valuable:
Service Call ($79):
β’ Reactive β something is broken or not working right
β’ We diagnose the problem and quote the repair
β’ One-time visit triggered by a problem
Maintenance Visit (contracted):
β’ Proactive β scheduled visits to prevent breakdowns
β’ Filter changes, coil cleaning, refrigerant checks
β’ Belt and electrical inspection, performance verification
β’ Recurring (quarterly or biannual)
Most commercial customers do both β maintenance contracts to prevent issues, plus service calls when something unexpected breaks. Maintenance customers get priority service call response and discounted labor rates.
Yes β fully credentialed for commercial work:
β’ Michigan Mechanical Licensed (required for commercial HVAC in MI)
β’ EPA 608 Certified (federally required for refrigerant handling)
β’ BBB Accredited Business (Eastern Michigan)
β’ Fully insured with general liability and workers comp (COI available)
β’ Registered with all Wayne County cities
We can provide proof of insurance and licenses for property manager and corporate facility manager requirements. License numbers available on request.